Answer:
Change in the species structure of an ecological community over time. (A)
Explanation: Google
The signs and symptoms of a cluster headache include severe<span> right-sided headache with a runny nose, droopy eyelids, and tearing of the eye on the right side.
</span>The injectable form of sumatriptan<span> (</span>Imitrex<span>), which is commonly used to treat a migraine, is also an effective treatment for acute cluster headache</span>
That is true but only bc of mutation
Answer:
Binary Fission would be correct I think.
